/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.nutch.protocol.http;

// JDK imports
import java.io.IOException;
import java.net.URL;
import java.util.Collection;
import java.util.HashSet;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.nutch.net.protocols.Response;
import org.apache.nutch.protocol.ProtocolException;
import org.apache.nutch.protocol.http.api.HttpBase;
import org.apache.nutch.storage.WebPage;
import org.apache.nutch.util.NutchConfiguration;

public class Http extends HttpBase {

	public static final Logger LOG = LoggerFactory.getLogger(Http.class);

	private static final Collection<WebPage.Field> FIELDS = new HashSet<WebPage.Field>();

	static {
		FIELDS.add(WebPage.Field.MODIFIED_TIME);
		FIELDS.add(WebPage.Field.HEADERS);
	}

	public Http() {
		super(LOG);
	}

	@Override
	public void setConf(Configuration conf) {
		super.setConf(conf);
		// Level logLevel = Level.WARNING;
		// if (conf.getBoolean("http.verbose", false)) {
		// logLevel = Level.FINE;
		// }
		// LOG.setLevel(logLevel);
	}

	public static void main(String[] args) throws Exception {
		Http http = new Http();
		http.setConf(NutchConfiguration.create());
		main(http, args);
	}

	@Override
	protected Response getResponse(URL url, WebPage page, boolean redirect)
			throws ProtocolException, IOException {
		return new HttpResponse(this, url, page);
	}

	public Collection<WebPage.Field> getFields() {
		return FIELDS;
	}

}
